耳熟能详

ěr shú néng xiáng

so familiar you can recite it

Character by character

耳ěr
ears

熟shú
familiar

能néng
can

详xiáng
detail

这些童话故事大家都耳熟能详。

Everyone knows these fairy tales by heart.

Tone: neutral.

熟 is shú in careful speech (shóu colloquially).

Learn it in context

This idiom and thousands more are in Learn Chinese with Bao, with audio, pinyin and drills that make them stick.